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* Don't continue when the call to nix fails.

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This commit is contained in:
Eelco Dolstra 2003-08-25 14:36:04 +00:00
parent a88144215c
commit 920193beb1
1 changed files with 11 additions and 3 deletions
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14
scripts/nix-collect-garbage.in
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@ -1,5 +1,8 @@
#! /usr/bin/perl -w
use strict;
use IPC::Open2;
my $linkdir = "@localstatedir@/nix/links";
my $storedir = "@prefix@/store";
@ -16,13 +19,18 @@ foreach my $arg (@ARGV) {
my $extraarg = "";
if ($keepsuccessors) { $extraarg = "--include-successors"; };
open HASHES, "nix --query --requisites $extraarg \$(cat $linkdir/*.id) |" or die "in `nix -qrh'";
while (<HASHES>) {
my $pid = open2(\*READ, \*WRITE, "nix --query --requisites $extraarg \$(cat $linkdir/*.id)")
or die "determining live paths";
close WRITE;
while (<READ>) {
chomp;
$alive{$_} = 1;
if ($invert) { print "$_\n"; };
}
close HASHES;
close READ;
waitpid $pid, 0;
$? == 0 or die "determining live paths";
exit 0 if ($invert);